Accession Number : AD0752743

Title :   Computer Program for Calculating the Response of a Piping Network to a Sinusoidal Excitation.

Descriptive Note : Research memo.,

Corporate Author : GRUMMAN AEROSPACE CORP BETHPAGE N Y RESEARCH DEPT

Personal Author(s) : Hill,W. G. , Jr

Report Date : NOV 1972

Pagination or Media Count : 35

Abstract : Dynamic behavior plays and important role in the design and pneumatic control lines and propellant feedlines. Dynamic behavour can be divided into three categories, with each category requiring a different method of treatment. These categories are: (1) quasi-steady flow, with slowly varying quantities; (2) periodic oscillations, important in stability analysis or hydraulic pump ripple problems; and (3) rapid, nonperiodic variations, such as those caused by the opening and closing of valves. Each of these categories can be further divided into cases where piping motion is negligible, and cases where it must be accounted for. This memorandum describes a method and computer program for computing the response of a complex system to a sinusiodal disturbance where piping motion is negligible or needs to be accounted for at only a small number of points. (Author)

Descriptors :   (*PIPES, FLUID FLOW), MATHEMATICAL MODELS, ACOUSTIC IMPEDANCE, DAMPING, HYDRAULIC PRESSURE PUMPS, EQUATIONS OF MOTION, COMPUTER PROGRAMS

Subject Categories : Computer Programming and Software
      Pumps, Filters, Pipes, Tubing, Fittings & Vlvs
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE